[INFO] cloning repository https://github.com/dskleingeld/sensor_central
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dskleingeld/sensor_central" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskleingeld%2Fsensor_central", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskleingeld%2Fsensor_central'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f281ac3c327faf4a9ceec22cdd4e2454e7abe827
[INFO] checking dskleingeld/sensor_central against try#ef8c760c4c3d93b561a5b431502e92f4b4773aca for pr-92472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskleingeld%2Fsensor_central" "/workspace/builds/worker-60/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-60/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dskleingeld/sensor_central on toolchain ef8c760c4c3d93b561a5b431502e92f4b4773aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dskleingeld/sensor_central
[INFO] finished tweaking git repo https://github.com/dskleingeld/sensor_central
[INFO] tweaked toml for git repo https://github.com/dskleingeld/sensor_central written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate git repo https://github.com/dskleingeld/sensor_central already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/dskleingeld/bitspec`
[INFO] [stderr]     Updating git repository `https://github.com/dskleingeld/bluebus`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.8.14
[INFO] [stderr]   Downloaded webpki v0.21.3
[INFO] [stderr]   Downloaded tower-service v0.3.0
[INFO] [stderr]   Downloaded httpdate v0.3.2
[INFO] [stderr]   Downloaded ipnet v2.3.0
[INFO] [stderr]   Downloaded http-body v0.3.1
[INFO] [stderr]   Downloaded hyper v0.13.9
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded sysfs_gpio v0.5.4
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded fern v0.6.0
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded embedded-hal v0.2.4
[INFO] [stderr]   Downloaded bincode v1.3.1
[INFO] [stderr]   Downloaded futures-channel v0.3.7
[INFO] [stderr]   Downloaded num-bigint v0.2.6
[INFO] [stderr]   Downloaded futures-macro v0.3.7
[INFO] [stderr]   Downloaded structopt-derive v0.4.13
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] [stderr]   Downloaded gpio-cdev v0.4.0
[INFO] [stderr]   Downloaded num v0.2.1
[INFO] [stderr]   Downloaded rustbus v0.6.0
[INFO] [stderr]   Downloaded rustls v0.18.1
[INFO] [stderr]   Downloaded sct v0.6.0
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded hyper-rustls v0.21.0
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded js-sys v0.3.45
[INFO] [stderr]   Downloaded futures-task v0.3.7
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.18
[INFO] [stderr]   Downloaded text_io v0.1.8
[INFO] [stderr]   Downloaded polyval v0.4.1
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded futures-core v0.3.7
[INFO] [stderr]   Downloaded futures-util v0.3.7
[INFO] [stderr]   Downloaded web-sys v0.3.45
[INFO] [stderr]   Downloaded futures-sink v0.3.7
[INFO] [stderr]   Downloaded yaml-rust v0.4.4
[INFO] [stderr]   Downloaded miow v0.3.5
[INFO] [stderr]   Downloaded ring v0.16.15
[INFO] [stderr]   Downloaded bme280 v0.1.2
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] [stderr]   Downloaded linux-embedded-hal v0.2.2
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.7
[INFO] [stderr]   Downloaded winreg v0.7.0
[INFO] [stderr]   Downloaded num-bigint v0.3.1
[INFO] [stderr]   Downloaded tokio-rustls v0.14.1
[INFO] [stderr]   Downloaded webpki-roots v0.19.0
[INFO] [stderr]   Downloaded reqwest v0.10.8
[INFO] [stderr]   Downloaded structopt v0.3.20
[INFO] [stderr]   Downloaded num v0.3.1
[INFO] [stderr]   Downloaded tokio-macros v0.2.5
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded i2cdev v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20790b8d3755d909c54461b499a3831827189f85a1d72a15a8b1dfcddeff0e41
[INFO] running `Command { std: "docker" "start" "-a" "20790b8d3755d909c54461b499a3831827189f85a1d72a15a8b1dfcddeff0e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20790b8d3755d909c54461b499a3831827189f85a1d72a15a8b1dfcddeff0e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20790b8d3755d909c54461b499a3831827189f85a1d72a15a8b1dfcddeff0e41", kill_on_drop: false }`
[INFO] [stdout] 20790b8d3755d909c54461b499a3831827189f85a1d72a15a8b1dfcddeff0e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d749451ba067c58553e340788f037aeb20c0b31f4661d21415dd05b6a4d279b7
[INFO] running `Command { std: "docker" "start" "-a" "d749451ba067c58553e340788f037aeb20c0b31f4661d21415dd05b6a4d279b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking bme280 v0.1.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking block-cipher v0.7.1
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking aes-soft v0.4.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.48/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=042376127a915f9d -C extra-filename=-042376127a915f9d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-89254f8a188bc205.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0bb1ea6a23b530f1.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ca70f4dd0d5d1ebc.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d749451ba067c58553e340788f037aeb20c0b31f4661d21415dd05b6a4d279b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d749451ba067c58553e340788f037aeb20c0b31f4661d21415dd05b6a4d279b7", kill_on_drop: false }`
[INFO] [stdout] d749451ba067c58553e340788f037aeb20c0b31f4661d21415dd05b6a4d279b7